EP 1564001 A2 20050817 - Inkjet head manufacturing method
Title (en)
Inkjet head manufacturing method
Title (de)
Herstellungsverfahren für einen Tintenstrahlkopf
Title (fr)
Procédé de fabrication d'une tête à jet d'encre
Publication
Application
Priority
- JP 2004034791 A 20040212
- JP 2004034792 A 20040212
Abstract (en)
A method for manufacturing an inkjet head (1) includes producing a flow path unit (4) comprising a plurality of pressure chambers (10), producing an actuator unit (21) comprising a piezoelectric structure, bonding the actuator unit with the flow path unit to produce a bonded structure; measuring a frequency characteristic of impedance of the piezoelectric structure of the bonded structure in each of regions facing at least one of the pressure chambers, and determining whether or not the bonded structure is a good product on a basis of at least one of a distribution of (Fa - Fr) in the plural regions where Fa represents antiresonance frequency of each region at which impedance of each region are maximal and Fr represents resonance frequency of each region at which impedance of each region is minimal, a distribution of Fr in the plural regions, and a distribution of Zr in the plural regions, where Zr represents impedance of each region at the resonance frequency of each region. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B41J 2/1609 (2013.01 - EP US); B41J 2/1623 (2013.01 - EP US); B41J 2002/14225 (2013.01 - EP US); B41J 2002/14258 (2013.01 - EP US); B41J 2002/14306 (2013.01 - EP US); B41J 2002/14459 (2013.01 - EP US); B41J 2002/14491 (2013.01 - EP US); B41J 2202/20 (2013.01 - EP US); Y10T 29/42 (2015.01 - EP US); Y10T 29/49126 (2015.01 - EP US); Y10T 29/49128 (2015.01 - EP US); Y10T 29/4913 (2015.01 - EP US); Y10T 29/49401 (2015.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1564001 A2 20050817; EP 1564001 A3 20051102; EP 1564001 B1 20091104; CN 100381286 C 20080416; CN 1654210 A 20050817; DE 602005017440 D1 20091217; US 2005179743 A1 20050818; US 7353604 B2 20080408
DOCDB simple family (application)
EP 05002817 A 20050210; CN 200510009437 A 20050216; DE 602005017440 T 20050210; US 5577105 A 20050211